Resources Research

Culture and systems of knowledge, cultivation and food, population and consumption

Posts Tagged ‘percentile

What we know and don’t about the true price of dal

leave a comment »

If you look at only the official account (left), the price of dal has been comfortable, but the consumer experience (right) tells a quite different story.

If you look at only the official account (left), the price of dal has been comfortable, but the consumer experience (right) tells a quite different story.

How urgently our national food price measuring methods need a complete overhaul is best shown with the example of a staple everyone is familiar with: arhar or tur dal.

Price indexes or indices are useful because they help us view the change in the price of a particular food staple over time, not the price itself, but change in price when taken from a base year or month. Price records are useful because they log the price (per kilo for retail consumption) of a food staple in a week or month.

The three ministries concerned with food prices update their indices or actual price reports every month or week. These are: the Department of Consumer Affairs of the Ministry of Food and Consumer Affairs, the Directorate of Economics and Statistics of the Department of Agriculture and Cooperation of the Ministry of Agriculture, and the Labour Bureau of the Ministry of Labour. In addition, there is the wholesale price index prepared by the Office of the Economic Adviser, Ministry of Commerce.

arhar_true_price_chart_sm1Usually, movements and trends in these indices and price logs are examined by themselves, and conclusions are drawn about whether the price of a food staple has been held steady or is rising steadily or is rising seasonally and also annually (we never see prices and trends going downwards).

But this is not enough. We need also to examine whether these indices and price logs are describing what they are designed to in the same manner and – very much more important – whether their descriptions are reasonable or not.

In the two chart panels, I have plotted the descriptions for arhar/tur dal from several sources together. The left chart has solid coloured price lines from the Department of Consumer Affairs and from the Directorate of Economics and Statistics. Each has two lines, the higher at the 90th percentile and the lower at the 10th percentile of all monthly prices logged from 2009 January until 2014 June. The two dashed lines are indices – the wholesale price index for arhar/tur and the Labour Bureau’s retail price index for arhar/tur over the same period. The price logs are plotted against the left index and the price indices are plotted against the right index.

Between the two indices the WPI for arhar appears lower than the Labour Bureau index, but that has only to do with a difference base period. The overall pattern they describe is the same. The two sets of price logs shows the two different levels for the 90th and 10th percentiles – in both cases the prices recorded by the Directorate of Economics and Statistics are higher than those recorded by the Department of Consumer Affairs. However they all follow a similar pattern over the 66 months illustrated here.

arhar_true_price_chart_sm2And so to the question: how true is what these indices and price logs are describing?

The answer is in the right chart. Here, two more lines are seen. These are both ascending relatively evenly over the 66 months, one at a slightly steeper rate. These I have called the ‘real retail’ price lines, one low and the other high. They describe the prices paid by urban consumers for a kilogram of arhar/tur dal based on what has been charged by ordinary retail outlets in towns and cities, with the price readings collected informally. They have also been ‘straightened’ by applying a 12%-14% true inflation that has been experienced by urban food consumers over these 66 months.

The effect, as you can see, is startling. The ‘real retail’ price lines explain why the consumption of pulses has been dropping and continues to drop especially amongst urban households whose livelihoods depend on multiple informal jobs. At Rs 90 to Rs 110 per kilogram, this dal (like other pulses) is almost beyond reach. At Rs 120 to Rs 130 per kilogram – these are levels that began to be recorded by consumers, but not consistently by the government price monitoring agencies, even two years ago – the dal can be consumed only by the upper strata of the urban middle class.

The question that immediately arises is: why is the real food price inflation being experienced by consumers not reflected in the official food price logs and indices? I will take up this question in the next posting.